LibWeb/IDL: Add support for generating IDL BufferSource type

Author: https://github.com/kennethmyhra
Commit: https://github.com/SerenityOS/serenity/commit/0153514314
Pull-request: https://github.com/SerenityOS/serenity/pull/14563
Reviewed-by: https://github.com/Lubrsi
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/linusg ✅

Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLGenerators.cpp

@@ -108,6 +108,9 @@ CppType idl_type_name_to_cpp_type(Type const& type, Interface const& interface)
     if (type.name == "any")
         return { .name = "JS::Value", .sequence_storage_type = SequenceStorageType::MarkedVector };
 
+    if (type.name == "BufferSource")
+        return { .name = "JS::Handle<JS::Object>", .sequence_storage_type = SequenceStorageType::MarkedVector };
+
     if (type.name == "sequence") {
         auto& parameterized_type = verify_cast<ParameterizedType>(type);
         auto& sequence_type = parameterized_type.parameters.first();